← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 287 · 40 questions
TalentJR

The trick (Double double): Double the number. Double the answer again. That is the number × 4.

NameDateTime takenScore ___ / 40
  1. 1.38 × 4 =
  2. 2.35 × 4 =
  3. 3.31 × 4 =
  4. 4.51 × 4 =
  5. 5.6 × 4 =
  6. 6.39 × 4 =
  7. 7.48 × 4 =
  8. 8.26 × 4 =
  9. 9.12 × 4 =
  10. 10.13 × 4 =
  11. 11.56 × 4 =
  12. 12.28 × 4 =
  13. 13.14 × 4 =
  14. 14.45 × 4 =
  15. 15.49 × 4 =
  16. 16.60 × 4 =
  17. 17.44 × 4 =
  18. 18.50 × 4 =
  19. 19.30 × 4 =
  20. 20.27 × 4 =
  21. 21.15 × 4 =
  22. 22.59 × 4 =
  23. 23.57 × 4 =
  24. 24.11 × 4 =
  25. 25.20 × 4 =
  26. 26.17 × 4 =
  27. 27.7 × 4 =
  28. 28.36 × 4 =
  29. 29.8 × 4 =
  30. 30.55 × 4 =
  31. 31.10 × 4 =
  32. 32.23 × 4 =
  33. 33.9 × 4 =
  34. 34.32 × 4 =
  35. 35.18 × 4 =
  36. 36.46 × 4 =
  37. 37.43 × 4 =
  38. 38.25 × 4 =
  39. 39.42 × 4 =
  40. 40.37 × 4 =

Answer key

  1. 152
  2. 140
  3. 124
  4. 204
  5. 24
  6. 156
  7. 192
  8. 104
  9. 48
  10. 52
  11. 224
  12. 112
  13. 56
  14. 180
  15. 196
  16. 240
  17. 176
  18. 200
  19. 120
  20. 108
  21. 60
  22. 236
  23. 228
  24. 44
  25. 80
  26. 68
  27. 28
  28. 144
  29. 32
  30. 220
  31. 40
  32. 92
  33. 36
  34. 128
  35. 72
  36. 184
  37. 172
  38. 100
  39. 168
  40. 148

Free maths tricks lessons, practice and worksheets at talentjr.in/maths-tricks